webviz (on Linux) is crashing when using the DiskUsage-plugin due to incompatible DiskUsage report format

[KetilN]

Remember that this is an open source project. Don't include e.g. screenshots with data that can't be publicly available.

Describe the bug
webviz (on Linux) is crashing when using the DiskUsage-plugin
due to incompatible DiskUsage format.

How to reproduce
Steps to reproduce the behavior:

Add a config like this to the webviz-config:

• page: Disk usage
  content:
  - DiskUsage:
  scratch_dir:

2. Start up webviz

3. Crash: webviz crashes due to incompatible DiskUsage report format

Expected behavior
Instead of a crash, webviz should either show a message saying
"DiskUsage plugin is inactivated due to DiskUsage report issues".

Screenshots
webviz crashes with a "Python callstack-dump".

Additional context
Assets in Equinor also use other developed tools to look at these DiskUsage-reports,
therefore we cannot just change the DiskUsage-report format.

[anders-kiaer]

Thanks for the report @KetilN.

We will "add soft failing" (i.e. not fail, and show a message in the app if it fails), and also give a quick try to see if we can support the new format after the latest change from infrastructure.